joe biden versus paul ryan. cnn's live coverage begins at 7:00 p.m. eastern. >>> so people all over the country have the heat turned on a little earlier than expected this week. so rob marciano in atlanta, when will it feel like fall again? >> well, it does, right? i think a lot of people, october 15, for my father it was november 15, but october 15 is the time you turn it on and it is early this time of the year. you're right. waynesburg, pennsylvania, 21. waukesha, 26 degrees. we are in some cases 20 degrees below average as far as temperatures are concerned. 36 right now in minneapolis. 36 degrees in kansas city. 42 in chicago. you had a mild, windy day yesterday, but things are changing. we've got multiple pulses of cool air coming down from canada. and not one but two or three shots of it coming through. 10 to 15 degrees below normal with this little clipper coming through today with some rain. on the backside is cool rain in places like minnesota and michigan seeing temperatures in the lower 40s with a lit